US3908703A - Armoured flexible pipe structure - Google Patents

Armoured flexible pipe structure Download PDF

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Publication number
US3908703A
US3908703A US439716A US43971674A US3908703A US 3908703 A US3908703 A US 3908703A US 439716 A US439716 A US 439716A US 43971674 A US43971674 A US 43971674A US 3908703 A US3908703 A US 3908703A
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US
United States
Prior art keywords
pipe structure
rings
ring
structure according
armouring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US439716A
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English (en)
Inventor
Claude Bournazel
Michel Chatard
Pierre Grolet
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IFP Energies Nouvelles IFPEN
Original Assignee
IFP Energies Nouvelles IFPEN
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Filing date
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Application granted granted Critical
Publication of US3908703A publication Critical patent/US3908703A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/08—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall
    • F16L11/081—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall comprising one or more layers of a helically wound cord or wire
    • F16L11/083—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall comprising one or more layers of a helically wound cord or wire three or more layers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/08—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/14—Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics
    • F16L11/16—Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics wound from profiled strips or bands
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/14—Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics
    • F16L11/18—Articulated hoses, e.g. composed of a series of rings

Definitions

  • FIGA A first figure.
  • FIG; 1 illustrates a'struc'tuie of a flexible pipe ac'coj'rd ing't'o' the'in'vention
  • FIG. 2 diagrammatically shows a longitudinal cross section of the internal armouring of this pipe
  • I "FIG. 3 shows the 'rin gs' ofth'is'sti'ucture in p osition of maximum 'spaciiig 'I i I' w
  • FIG. 4 shows, by way of comparison, the drawback exhibited by a structure which is somewhat different from that according to the invention
  • FIG. 5 illustrates an improvement to the embodiment of FIG. 3,
  • FIG. 6 shows a modification of the embodiment illustrated by FIG. 1.
  • FIG. 1 illustrates a flexible pipe according to the invention, comprising a tubular core I which may be made of an elastomeric or plastic material impervious to the fluid conveyed through the pipe.
  • This tubular core is covered by a pressure-resisting armouring formed of successive rings 2, each of which being provided (FIGS. 2 and 3) with two annular don rows-sauna- 4 inthe' vicinity of the two ends'of the ring 'respectivelyi "Thepipe' also i'nclud'e s'fseparate annular elements 5 :(FIGS. '2 and '3) interconnecting adjacent rings of the 'pressure-resisting'armouring.
  • the cross section'of these annular connecting elements is shaped as aflattened U having two-arms respectively engaged with some clear ance d (FIG) 3)' in' the two annular recesses 3 and 4 respectively.
  • These annular connecting elements 5 may be position'ed by using' any suitable process, particularly by 'c'rimping',”so as toi'nsert the edges of these elements into the annular grooves 3'and4.
  • the connecting elements'S' may'cbnsist" of split rings (split 6, FIG. 2 )'o'r segmentsresiliently inserted, by radial: compression "into the' annular grooves 3 and4. i i
  • connecting elements 5 formed ofg'ring s which are not sp lit but are still resiliently 'defo'rmable radial compressiomso as to facilitate their positioning between the successive rings 2
  • the'rings2 of the pressure-resisting armouring are covered by a traction resisting armouring which, in this embodiment,
  • the pip'e may be covered by one 'or several tightening sheaths, such as the sheaths 9 and 10in the embodiment illustrated by FIG. 1.
  • This embodiment considerably'enhancesthe reliabil- I ity of the externaltig'htening j Th control of the quality of such sheath is difficult, but in the selected embodiment, even if a small perforation t h rough a first? of the two sheaths, a second perfo ration through the second sheath can beidetected, no fluid leakage will occur unless the two perforations are very close to each other, which is unlikely. to occur.
  • each ring 2 of the pressure resisting armouring has the advantage of dividing by 2 the spacing between the end face of an annular connecting elehe traction-resisting armouring may c onsis to'f one. or more helical windings (two armouring layers and ment 5 and the wall of the groove, for a given lengthening of the pipe (for example when the latter is wound or passes over a direction reversing device such as a pulley), with respect to a structure'wherein the rings 2 would be provided with a single central groove 12 (FIG. 4) instead of the two grooves 3 and 4.
  • FIG. 2 increases the liability for the internal sheath of being extruded between the annular connecting elements 5.
  • extrusion occuring at 13 in a structure like thatvillustrated by FIG. 4, might result in a rapid deterioration of the tubular core I, as a consequence of repeated pinching of the latter, occurring when the rings 2 move again toward each other after having been displaced away from each other.
  • FIG. 6 illustrates an embodiment wherein the pressure-resisting armouring of the pipe, which comprises the rings 2, is separated from the traction resisting armouring, more particularly from the internal layer 7 of this armouring, by a layer 15 of a material (for example a plastic material) facilitating the relative sliding of these two armourings on each other, thus preventing any transmission to the rings 2, through the armouring layer 7, of a rotary movement resulting for the application of a torque to the armourings 7 and 8.
  • a material for example a plastic material
  • An armoured flexible pipe structure comprising a plurality of successive rings each ring defining two annular grooves in the internal wall thereofin the vicinity of the end faces of the ,ring and separate annular elements interconnecting adjacent rings of said pipe structure, said separate annular elements having crosssections substantially shaped as a flattened U whose two arms are respectively engaged in the annular grooves of adjacent rings with a clearance.
  • a pipe structure according to'claim 1 including resilient spacing means between adjacent rings of the pipe structure, said spacing means maintaining a substantially uniform distance between said adjacent rings.
  • each ring comprises means limiting the radial displacement of the ring relative to the pipe axis so as to prevent any disengagement of adjacent rings of the pipe.
  • a pipe structure according to claim 7, wherein said means comprises a shoulder at one end of each ring extending over a portion of the adjacent ring.
  • a pipe structure according to claim 8 wherein said shoulder overlaps a resilient spacing means between said ring and an adjacent ring.
  • a new armoured flexible pipe structure comprising in combination a flexible tubular core covered by armouring layers which comprise a pressure-resisting armouring formed of a succession of rings, each ring defining two annular grooves in the internal wall thereof in the vicinity of the end faces of the ring and separate annular elements interconnecting adjacent rings, the cross-section of said annular elements being shaped as a flattened U with two arms respectively inserted in the annular grooves of adjacent rings with a clearance, and a traction resisting armouring formed of at least one helical winding covering said pressureresisting armouring.
  • said traction-resisting armouring is covered by two nonadhering tightening sheaths, the externalsheath exerting a constricting or clamping action on the pipe.
  • An armoured flexible pipe structure comprising a plurality of successive rings, each ring defining two annular grooves in the internal wall thereof, and a plurality of annular elements having U-shaped cross sections. the arms of at least one U-shaped annular element engaging the adjacent grooves of a pair of adjacent rings thereby connecting said adjacent rings together, said arms engaging said annular grooves with a clearance.
  • said clearance is an axial clearance

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
US439716A 1973-02-15 1974-02-05 Armoured flexible pipe structure Expired - Lifetime US3908703A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7305453A FR2217621B1 (un) 1973-02-15 1973-02-15

Publications (1)

Publication Number Publication Date
US3908703A true US3908703A (en) 1975-09-30

Family

ID=9114910

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Application Number Title Priority Date Filing Date
US439716A Expired - Lifetime US3908703A (en) 1973-02-15 1974-02-05 Armoured flexible pipe structure

Country Status (6)

Country Link
US (1) US3908703A (un)
FR (1) FR2217621B1 (un)
GB (1) GB1429104A (un)
NL (1) NL175754C (un)
NO (1) NO147044C (un)
SE (1) SE393849B (un)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4168752A (en) * 1976-12-20 1979-09-25 Karol Sabol Flexible conduit for effecting lateral channelling in coal or oil shale beds
FR2483042A1 (fr) * 1980-05-26 1981-11-27 Nuovo Pignone Spa Raccord metallique flexible pour raccorder les canalisations sous-marines deposees a grande profondeur
EP0045632A1 (en) * 1980-07-31 1982-02-10 Mobil Oil Corporation Flexible pipe
GB2186658A (en) * 1986-02-13 1987-08-19 Btr Plc Flexible elongate tubular article
US4745881A (en) * 1986-09-08 1988-05-24 Larson Reed A Milking inflation
US5143123A (en) * 1989-08-18 1992-09-01 Simula, Inc. Cylindrical armor
US5275209A (en) * 1988-05-09 1994-01-04 Institut Francais Du Petrole Hose including an aluminum alloy
AU692981B2 (en) * 1994-12-05 1998-06-18 Coflexip S.A. Flexible tubular pipe comprising an interlocked armouring web
US5918641A (en) * 1990-06-18 1999-07-06 Hardy; Jean Flexible tubular conduit comprising a jacket made of crosslinked polyethylene device and process for manufacturing such a conduit
US6065501A (en) * 1989-06-30 2000-05-23 Institute Francais Du Petrole Flexible tube having at least one elongated reinforcing element with a T-shaped profile
US6390141B1 (en) 1998-12-21 2002-05-21 Parker-Hannifin Corporation Collapse-resistant hose construction
US6742545B2 (en) 1998-12-21 2004-06-01 Parker-Hannifin Corporation Hose construction
US20060280889A1 (en) * 2005-06-10 2006-12-14 Powell Steven M Tubular nylon alloy members for tubing and hose constructions
US20080017385A1 (en) * 2001-09-15 2008-01-24 Robert Gibson Buoyancy element and module
WO2011050810A1 (en) * 2009-10-28 2011-05-05 Nkt Flexibles I/S A flexible pipe and a method of producing a flexible pipe
US20110120636A1 (en) * 2009-11-20 2011-05-26 Lockheed Martin Corporation Pultruded Arc-Segmented Pipe
US20130056105A1 (en) * 2009-12-18 2013-03-07 Geoffrey Stephen Graham Flexible pipe including carcass layer
US20130105026A1 (en) * 2010-02-01 2013-05-02 Jean-Pascal Biaggi Flexible pipe for conveying a cryogenic fluid and associated production method
US20140014218A1 (en) * 2011-01-20 2014-01-16 National Oilwell Varco Denmark I/S Flexible armored pipe
US20170045177A1 (en) * 2015-08-12 2017-02-16 Tor Persson Bending restrictor assembly for a pipeline
US9982800B2 (en) * 2015-08-12 2018-05-29 Tor Persson Bending restrictor assembly for permanently bending and restraining ovality of a subsea pipe
US20180238222A1 (en) * 2017-02-21 2018-08-23 Witzenmann Gmbh Line element for compensating for expansions and/or relative movements
US11085559B2 (en) * 2016-09-09 2021-08-10 Baker Hughes Energy Technology UK Limited Interlocked layer and method of manufacture

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2467347A1 (fr) * 1979-10-02 1981-04-17 Inst Mat I Mek Tuyau flexible et procede de sa fabrication
FR2557254B1 (fr) * 1983-12-22 1986-06-27 Inst Francais Du Petrole Conduite flexible ne presentant pas de variation notable de longueur, sous l'effet d'une pression interne
DE3409734A1 (de) * 1984-03-20 1985-09-26 The Furukawa Electric Co., Ltd., Tokio/Tokyo Biegsame rohrleitung fuer den transport fliessender medien
GB8421235D0 (en) * 1984-08-21 1984-09-26 Dunlop Ltd Hose
GB8421237D0 (en) * 1984-08-21 1984-09-26 Dunlop Ltd Hose(1)
FR2782141B1 (fr) * 1998-08-10 2000-09-08 Coflexip Conduite flexible resistante a fluage limite de la gaine d'etancheite

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US899623A (en) * 1907-09-27 1908-09-29 George F Royer Flexible pipe.
US2136770A (en) * 1935-02-26 1938-11-15 Witzenmann Emil Flexible conduit
US3674014A (en) * 1969-10-28 1972-07-04 Astra Meditec Ab Magnetically guidable catheter-tip and method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3499668A (en) * 1968-03-11 1970-03-10 Youngstown Sheet And Tube Co Pipe

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US899623A (en) * 1907-09-27 1908-09-29 George F Royer Flexible pipe.
US2136770A (en) * 1935-02-26 1938-11-15 Witzenmann Emil Flexible conduit
US3674014A (en) * 1969-10-28 1972-07-04 Astra Meditec Ab Magnetically guidable catheter-tip and method

Cited By (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4168752A (en) * 1976-12-20 1979-09-25 Karol Sabol Flexible conduit for effecting lateral channelling in coal or oil shale beds
FR2483042A1 (fr) * 1980-05-26 1981-11-27 Nuovo Pignone Spa Raccord metallique flexible pour raccorder les canalisations sous-marines deposees a grande profondeur
DE3120811A1 (de) * 1980-05-26 1982-02-18 Nuovo Pignone S.p.A., Firenze "flexible metallkupplung zum verbinden von unterwasserleitungen, die in grossen tiefen verlegt sind"
EP0045632A1 (en) * 1980-07-31 1982-02-10 Mobil Oil Corporation Flexible pipe
GB2186658A (en) * 1986-02-13 1987-08-19 Btr Plc Flexible elongate tubular article
GB2186658B (en) * 1986-02-13 1990-06-13 Btr Plc Flexible elongate tubular article
US4745881A (en) * 1986-09-08 1988-05-24 Larson Reed A Milking inflation
US5275209A (en) * 1988-05-09 1994-01-04 Institut Francais Du Petrole Hose including an aluminum alloy
US5406984A (en) * 1988-05-09 1995-04-18 Institut Francais Du Petrole Hose including an aluminum alloy
US6065501A (en) * 1989-06-30 2000-05-23 Institute Francais Du Petrole Flexible tube having at least one elongated reinforcing element with a T-shaped profile
US5143123A (en) * 1989-08-18 1992-09-01 Simula, Inc. Cylindrical armor
US5918641A (en) * 1990-06-18 1999-07-06 Hardy; Jean Flexible tubular conduit comprising a jacket made of crosslinked polyethylene device and process for manufacturing such a conduit
AU692981B2 (en) * 1994-12-05 1998-06-18 Coflexip S.A. Flexible tubular pipe comprising an interlocked armouring web
US6192941B1 (en) * 1994-12-05 2001-02-27 Coflexip Flexible tubular pipe comprising an interlocked armouring web
US6390141B1 (en) 1998-12-21 2002-05-21 Parker-Hannifin Corporation Collapse-resistant hose construction
US6742545B2 (en) 1998-12-21 2004-06-01 Parker-Hannifin Corporation Hose construction
US20080017385A1 (en) * 2001-09-15 2008-01-24 Robert Gibson Buoyancy element and module
US20060280889A1 (en) * 2005-06-10 2006-12-14 Powell Steven M Tubular nylon alloy members for tubing and hose constructions
WO2011050810A1 (en) * 2009-10-28 2011-05-05 Nkt Flexibles I/S A flexible pipe and a method of producing a flexible pipe
AU2010312002C1 (en) * 2009-10-28 2015-08-06 National Oilwell Varco Denmark I/S A flexible pipe and a method of producing a flexible pipe
US20120266997A1 (en) * 2009-10-28 2012-10-25 Nkt Flexibles I/S Flexible pipe and a method of producing a flexible pipe
US9562633B2 (en) * 2009-10-28 2017-02-07 National Oilwell Varco Denmark I/S Flexible pipe and a method of producing a flexible pipe
AU2010312002B2 (en) * 2009-10-28 2014-10-23 National Oilwell Varco Denmark I/S A flexible pipe and a method of producing a flexible pipe
US8152949B2 (en) 2009-11-20 2012-04-10 Lockheed Martin Corporation Pultruded arc-segmented pipe
US20110120636A1 (en) * 2009-11-20 2011-05-26 Lockheed Martin Corporation Pultruded Arc-Segmented Pipe
US20130056105A1 (en) * 2009-12-18 2013-03-07 Geoffrey Stephen Graham Flexible pipe including carcass layer
US9046203B2 (en) * 2009-12-18 2015-06-02 Ge Oil & Gas Uk Limited Flexible pipe including carcass layer
US20130105026A1 (en) * 2010-02-01 2013-05-02 Jean-Pascal Biaggi Flexible pipe for conveying a cryogenic fluid and associated production method
US9127792B2 (en) * 2010-02-01 2015-09-08 Technip France Flexible pipe for conveying a cryogenic fluid and associated production method
US9458956B2 (en) * 2011-01-20 2016-10-04 National Oilwell Varco Denmark I/S Flexible armored pipe
US20140014218A1 (en) * 2011-01-20 2014-01-16 National Oilwell Varco Denmark I/S Flexible armored pipe
US20170045177A1 (en) * 2015-08-12 2017-02-16 Tor Persson Bending restrictor assembly for a pipeline
US9822918B2 (en) * 2015-08-12 2017-11-21 Tor Persson Bending restrictor assembly for a pipeline
US9982800B2 (en) * 2015-08-12 2018-05-29 Tor Persson Bending restrictor assembly for permanently bending and restraining ovality of a subsea pipe
US11085559B2 (en) * 2016-09-09 2021-08-10 Baker Hughes Energy Technology UK Limited Interlocked layer and method of manufacture
US20180238222A1 (en) * 2017-02-21 2018-08-23 Witzenmann Gmbh Line element for compensating for expansions and/or relative movements
US11015512B2 (en) * 2017-02-21 2021-05-25 Witzenmann Gmbh Line element for compensating for expansions and/or relative movements

Also Published As

Publication number Publication date
NO147044B (no) 1982-10-11
NO740491L (no) 1974-08-16
NL175754B (nl) 1984-07-16
FR2217621B1 (un) 1976-05-14
NL175754C (nl) 1984-12-17
NO147044C (no) 1983-01-19
SE393849B (sv) 1977-05-23
FR2217621A1 (un) 1974-09-06
GB1429104A (en) 1976-03-24
NL7402155A (un) 1974-08-19

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